[3] Cameron's first published book, The Unheard Music (1950), was partially based on her experience as a librarian and was positively received by critics, though it didn't sell particularly well.
[4] That book, The Wonderful Flight to the Mushroom Planet (1954), proved to be very popular, spawning four sequels and two short stories over the following 13 years.
In addition to her fiction work, Cameron wrote two books of criticism and reflection on children's literature.
The first, The Green and Burning Tree, was released in 1969 and led to an increased profile for Cameron in the world of children's literature.
Throughout the 1970s, 1980s, and early 1990s Cameron worked as a traveling speaker and contributor to publications such as The Horn Book Magazine, Wilson Library Bulletin, and Children's Literature in Education.
He also scoffed at her recommendation that teachers find better literature to share with their students: "I would dearly like to see Ms. Cameron trying to read Little Women, or Robinson Crusoe for that matter to a class of today's children.
The pictures and descriptions of the Oompa-Loompas in Charlie were revised by Dahl and his publisher Knopf for the 1973 edition to make the characters into dwarves from Loompaland, whom Willy Wonka adores.